Light (A, B) and scanning electron (C-I) micrographs of Pontigulasia rhumbleri. (A) View of many specimens to illustrate variability in shape and size of the shell. (B) View of live specimen to show a single long endolobopodia. (C) Broad lateral view showing general shape. (D) Apertural view (E) View of aperture showing its irregular outline and surrounding angular particles of quartz. (F) Close up view of internal opening. (G) Portion of shell surface. (H, I) Details of organic cement network.

  Part of: Todorov M, Bankov N (2019) An Atlas of Sphagnum-Dwelling Testate Amoebae in Bulgaria. Advanced Books.